Finding the Fourth Proportional to 1,451.98, 2,003.74 and 788.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.98 : 2,003.74 = 788.83 : x
2. Step 2: Convert to fraction form
   1,451.98/2,003.74 = 788.83/x
3. Step 3: Cross multiply
   1,451.98x = 2,003.74 × 788.83
4. Step 4: Simplify right side
   1,451.98x = 1,580,610.22
5. Step 5: Solve for x
   x = 1,580,610.22/1,451.98
6. Step 6: Final answer
   x = 1,088.59